scholarly journals Signatures of spin-orbit coupling in scanning gate conductance images of electron flow from quantum point contacts

2014 ◽  
Vol 90 (3) ◽  
Author(s):  
M. P. Nowak ◽  
K. Kolasiński ◽  
B. Szafran
Author(s):  
Nikhil Bhandari ◽  
Maitreya Dutta ◽  
James Charles ◽  
Richard S Newrock ◽  
Marc Cahay ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bartłomiej Rzeszotarski ◽  
Alina Mreńca-Kolasińska ◽  
François M. Peeters ◽  
Bartłomiej Szafran

AbstractThe transconductance and effective Landé $$g^*$$ g ∗ factors for a quantum point contact defined in silicene by the electric field of a split gate is investigated. The strong spin–orbit coupling in buckled silicene reduces the $$g^*$$ g ∗ factor for in-plane magnetic field from the nominal value 2 to around 1.2 for the first- to 0.45 for the third conduction subband. However, for perpendicular magnetic field we observe an enhancement of $$g^*$$ g ∗ factors for the first subband to 5.8 in nanoribbon with zigzag and to 2.5 with armchair edge. The main contribution to the Zeeman splitting comes from the intrinsic spin–orbit coupling defined by the Kane–Mele form of interaction.


2014 ◽  
Vol 5 (1) ◽  
Author(s):  
B. Brun ◽  
F. Martins ◽  
S. Faniel ◽  
B. Hackens ◽  
G. Bachelier ◽  
...  

2006 ◽  
Vol 3 (12) ◽  
pp. 4168-4171 ◽  
Author(s):  
Mikio Eto ◽  
Tetsuya Hayashi ◽  
Yuji Kurotani ◽  
Hiroto Yokouchi

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